Three points `P(h ,k),Q(x_1,y_1)`and `R(x_2,y_2)`lie on a line. Show that `(h-x_1)(y_2-y_1)=(k-y_1)(x_2-x_1)`.

Three points P(h, k), Q(dotx_1, y_1) and R(x_2, y_2) lie on a line. Show that (h-x_1)(y_2-y_1)=(k-y_1)(x_2-x_1)

If the points P(h , k),\ Q(x_1, y_1)a n d\ R(x_2, y_2) lie on a line. Show that: (h-x_1)(y_2-y_1)=(k-y_1)(x_2-x_1)dot

If the points P(h,k),Q(X_1,Y_1) and R(X_2,Y_2) lie on a line.Show that (h-x_1)(y_2-y_1)=(k-y_1)(x_2-x_1)

If the points P(h,k),Q(x_(1),y_(1)) and R(x_(2),y_(2)) lie on a line.Show that: (h-x_(1))(y_(2)-y_(1))=(k-y_(1))(x_(2)-x_(1))

Three points P(h,k),Q(x_(1),y_(1)) and R(x_(2),y_(2)) lie on a line.Show that quad (h-x_(1))(y_(2)-y_(1))=(k-y_(1))(x_(2)-x_(1))

Three points A(x_1 , y_1), B (x_2, y_2) and C(x, y) are collinear. Prove that: (x-x_1) (y_2 - y_1) = (x_2 - x_1) (y-y_1) .

Three points A(x_1 , y_1), B (x_2, y_2) and C(x, y) are collinear. Prove that: (x-x_1) (y_2 - y_1) = (x_2 - x_1) (y-y_1) .

If the points (x_1, y_1),(x_2,y_2), and (x_3, y_3) are collinear show that (y_2-y_3)/(x_2x_3)+(y_3-y_1)/(x_3x_1)+(y_1-y_2)/(x_1x_2)=0

If the points (x_1, y_1),(x_2,y_2), and (x_3, y_3) are collinear show that (y_2-y_3)/(x_2x_3)+(y_3-y_1)/(x_3x_1)+(y_1-y_2)/(x_1x_2)=0

If the points (x_1, y_1),(x_2,y_2), and (x_3, y_3) are collinear show that (y_2-y_3)/(x_2x_3)+(y_3-y_1)/(x_3x_1)+(y_1-y_2)/(x_1x_2)=0